Mayonnaise. Buy a jar of mayonnaise and apply it to your dry hair really thick, use as much as possible from that jar, then wrap your hair/head with saran wrap and leave it in *for a couple of hours*, the longer you leave it in the more relaxed it becomes. After a few hours then shampoo, rinse and repeat with shampoo two or three times. I'm a caucasian/white but I'm still a sister... I hope this helps... (my smile)
